Modified Ross procedure using a conduit with a synthetic valve

Shin Takabayashi, Hideaki Kado, Yuichi Shiokawa, Kouji Fukae, Toshihide Nakano

研究成果: ジャーナルへの寄稿学術誌査読

11 被引用数 (Scopus)

抄録

Objective: In the Ross procedure, a homograft conduit is commonly used in place of an autotransplanted pulmonary valve. Homograft availability may be a problem and has resulted in a search for alternatives. We performed a modified Ross procedure for right ventricular outflow tract reconstruction with a synthetic valved conduit as an alternative to homograft. Our early results of valvular and right ventricular function were evaluated in patients who used a conduit with a synthetic valve. Methods: Subjects consisted of 11 patients, who ranged in age from 5 to 22 years (12.0±4.9), and whose body weight ranged from 15.1 to 52.5 (34.3±14.4) kg. Indications for surgery were aortic stenosis (n=3), aortic stenosis and regurgitation (n=4), and aortic regurgitation (n=4). Right ventricular outflow tract reconstruction was performed using a hand-fashioned valved conduit prepared by sewing a 0.1 mm thick polytetrafluoroethylene sheet onto the luminal cavity of the 20-28 mm conduit. A conduit made with polytetrafluoroethylene was used in 8 patients, and a Dacron graft was used in 3 patients. Results: There was no in-hospital or late mortality and angiocardiography at discharge revealed that all artificial valves remained active. The mean right atrial pressure and right ventricular end-diastolic pressure were not statistically different from preoperative values. The latest echocardiography (mean interval, 12.6 months) revealed that a mean pressure gradient across the synthetic valve was 11.4±11.1 mmHg and none of the patients had moderate or severe regurgitation. Conclusions: We demonstrated that a modified Ross procedure for right ventricular outflow tract reconstruction using a conduit with an appropriate synthetic valve is particularly effective in older children.

本文言語英語
ページ(範囲)1087-1091
ページ数5
ジャーナルEuropean Journal of Cardio-thoracic Surgery
26
6
DOI
出版ステータス出版済み - 12月 2004

!!!All Science Journal Classification (ASJC) codes

  • 外科
  • 呼吸器内科
  • 循環器および心血管医学

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